Home / 8,621.91-11,897.35-5,265.54

Finding the Fourth Proportional to 8,621.91, 11,897.35 and 5,265.54

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Solution

The fourth proportional to 8,621.91, 11,897.35 and 5,265.54 is: 7,265.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.91 : 11,897.35 = 5,265.54 : x
  2. Step 2: Convert to fraction form
    8,621.91/11,897.35 = 5,265.54/x
  3. Step 3: Cross multiply
    8,621.91x = 11,897.35 × 5,265.54
  4. Step 4: Simplify right side
    8,621.91x = 62,645,959.16
  5. Step 5: Solve for x
    x = 62,645,959.16/8,621.91
  6. Step 6: Final answer
    x = 7,265.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.